Np adjusted Allin ev 3 way

[narayan2000]

hi everybody,

i encountered a bug where there is no calculation of adjusted allin ev in a 3 way hand with all players all in on the flop...
hand is attached.

[udbrky]

That is correct. All-in EV has always had an issue with multi-way all-ins. It won't calculate it.

[fozzy71]

This is not an 'issue' or 'bug' in HM3/PT4. HM2 does calculate EV in this hand (and similar hands) but HM3/PT4 do not as they use a different EV formula to reduce bias in these (and other) types of scenarios.

163802

In a hand where a player is all-in but other players are not, net adjusted results are not calculated. When one player is all-in preflop and other players are not, then they usually have the option to act postflop and this means that sometimes one of them will fold. Having the option to fold* after another street is dealt means that in the long run there will be more strong hands which get to showdown and less weak hands. If we were to calculate net adjusted results in hands like this it would introduce a systematic bias (because there will be more known strong hands) so we exclude all hands like this from net adjusted calculations. You can read more about this here - https://www.pokertracker.com/blog/2011/10/the-problem-with-all-in-ev-all-in-equity

*Note: Attempting to calculate adjusted results when unknown but folded cards already called the all-in also introduce a bias into the results so HM3 does not make these calculations in any situation where a player calls the all-in and later folds (even if it's on the same street).